Question

An initially uncharged 3.31×10−63.31×10−6 F capacitor and a 63906390 Ω resistor are connected in series to...

An initially uncharged 3.31×10−63.31×10−6 F capacitor and a 63906390 Ω resistor are connected in series to a 1.501.50 V battery that has negligible internal resistance.

What is the initial current in Angstrom

Calculate the circuit's time constant τ

How much time t must elapse from the closing of the circuit for the current to decrease to 2.512.51% of its initial value?

2. A 659 μF capacitor is discharged through a resistor, whereby its potential difference decreases from its initial value of 90.9 V to 22.5 V in 4.65 s. Find the resistance of the resistor in kilohms.

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Answer #1

Use the equation for current in a charging RC circuit to find the required solution as shown below. Use the value of resistance and capacitance to find the time constant.

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